Pulmonary embolism is best described as what?

Pulmonary embolism is best described as what?

• A. Blockage of the lung's main artery by a substance that traveled from elsewhere through the bloodstream
• B. Inflammation of the airways
• C. Fluid accumulation in the lungs
• D. A chest infection

Answer: (A)

Pulmonary embolism occurs when a piece of material travels through the bloodstream from another part of the body and lodges in a pulmonary artery, causing a blockage of blood flow to part of the lung. This sudden obstruction disrupts oxygen exchange and can present with sharp chest pain and shortness of breath, and in serious cases can be life-threatening if not treated promptly. The other conditions describe different lung problems: inflammation of the airways, fluid buildup in the lungs, or a chest infection, none of which involve a traveling embolus blocking the lung vessels.

Pulmonary embolism occurs when a piece of material travels through the bloodstream from another part of the body and lodges in a pulmonary artery, causing a blockage of blood flow to part of the lung. This sudden obstruction disrupts oxygen exchange and can present with sharp chest pain and shortness of breath, and in serious cases can be life-threatening if not treated promptly. The other conditions describe different lung problems: inflammation of the airways, fluid buildup in the lungs, or a chest infection, none of which involve a traveling embolus blocking the lung vessels.